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CS3524A/D PDF预览

CS3524A/D

更新时间: 2024-10-27 23:43:39
品牌 Logo 应用领域
其他 - ETC 驱动器
页数 文件大小 规格书
8页 80K
描述
Voltage Mode PWM Control Circuit with 200 mA Output Drivers

CS3524A/D 数据手册

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CS3524A  
Voltage Mode  
PWM Control Circuit with  
200 mA Output Drivers  
The CS3524A PWM control circuit retains the same versatile  
architecture of the industry standard CS3524 (SG3524) while adding  
substantial improvements.  
http://onsemi.com  
The CS3524 is pin–compatible with “non–A” versions, and in most  
applications can be directly interchanged. The CS3524A, however,  
eliminates many of the design restrictions which had previously  
required additional external circuitry.  
MARKING  
DIAGRAMS  
16  
16  
The CS3524A includes a precision 5.0 V reference trimmed to ±1%  
accuracy (eliminating the need for potentiometer adjustments), an  
error amplifier with an output voltage swing extending to 5.0 V, and a  
current sense amplifier useful in either the ground or power supply  
output lines. The uncommitted 60 V, 200 mA NPN output pair greatly  
enhances the output drive capability.  
CS3524A  
AWLYYWW  
1
DIP–16  
N SUFFIX  
CASE 648  
1
16  
The CS3524A features an undervoltage lockout circuit which  
disables all internal circuitry (except the reference) until the input  
voltage has risen to 8.0 V. This holds standby current low until  
turn–on, and greatly simplifies the design of low power, off–line  
supplies. The turn–on circuit has approximately 600 mV of hysteresis  
for jitter free activation.  
16  
CS3524A  
1
AWLYYWW  
SO–16L  
DW SUFFIX  
CASE 751G  
1
Other improvements include a PWM latch that insures freedom  
from multiple pulsing within a period, even in noisy environments;  
logic to eliminate double pulsing on a single output, a 200 ns external  
shutdown capability, and automatic thermal protection from excessive  
chip temperature. The oscillator circuit is usable to 500 kHz and is  
easier to synchronize with an external clock pulse.  
A
WL, L  
YY, Y  
= Assembly Location  
= Wafer Lot  
= Year  
WW, W = Work Week  
PIN CONNECTIONS  
Features  
Precision Reference Internally Trimmed to ±1%  
Current Limit  
Undervoltage Lockout  
Start–Up Supply Current < 4.0 mA  
Output to 200 mA  
60 V Output Capability  
Wide Common–Mode Input Range for Error and Current Limit  
Amplifiers  
1
EA–  
EA+  
V
REF  
V
IN  
SYNC  
E
B
I
V
OUTB  
SENSE+  
I
V
OUTA  
SENSE–  
R
C
E
A
T
SHUTDOWN  
COMP  
T
GND  
PWM Latch Insures Single Pulse per Period  
Double Pulse Suppression  
200 ns Shutdown  
ORDERING INFORMATION  
Guaranteed Frequency  
Thermal Shutdown  
Device  
Package  
Shipping  
CS3524AGN16  
25 Units/Rail  
46 Units/Rail  
DIP–16  
SO–16L  
SO–16L  
CS3524AGDW16  
CS3524AGDWR16  
1000 Tape & Reel  
Semiconductor Components Industries, LLC, 2001  
1
Publication Order Number:  
December, 2000 – Rev. 3  
CS3524A/D  

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